It looks like it’s striped.
I’ve had it before and it was nothing to worry about.
I would fill those cups with soil to give the roots room to breathe. It’s probably about time for a transplant anyway.
Humidity makes em go funny like that and it could be to high or to low, but they just grow through it they just look funny for awhile
I agree they should work themselves out of that. Also that you should top cups off when planting.
Those labels are nice
Next time fill those solo cups. I am sure it will be fine, just don’t do anything drastic and monitor her. She will need to be transplanted very soon and that ought to help
Hybrid indica dominant